drm/amdkfd: Move TLB flushing logic into amdgpu

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This will make it possible for amdgpu GEM ioctls to flush TLBs on compute
VMs.

This removes VMID-based TLB flushing and always uses PASID-based
flushing. This still works because it scans the VMID-PASID mapping
registers to find the right VMID. It's only slightly less efficient. This
is not a production use case.

Signed-off-by: Felix Kuehling <Felix.Kuehling@amd.com>
Reviewed-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

...

This commit is contained in:

Felix Kuehling 2023-02-24 18:22:32 -05:00 • committed by Alex Deucher

parent e6ed364efa

commit 94e2dae0a8

6 changed files with 57 additions and 67 deletions

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29

drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd.c

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5

drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd.h

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44

drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c

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5

drivers/gpu/drm/amd/amdgpu/amdgpu_vm.h

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10

drivers/gpu/drm/amd/amdkfd/kfd_priv.h

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31

drivers/gpu/drm/amd/amdkfd/kfd_process.c

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